Promotional Black+Blum Stainless Steel Double Bento Box This set includes two 500ml stainless steel containers, giving you a total volume of 1 litre—perfect for meals on the go. The containers are 100% leak proof and come with a smart stainless steel slider divider for separating food. The bamboo lid doubles as a chopping board and neatly conceals a handy fork, making it ideal for eating anywhere. Developed in collaboration with Sara Kiyo Popowa, author of Bento Power, the design includes five exclusive recipes created especially for this set.